src/org/cacert/gigi/Gigi.java

   1 package org.cacert.gigi;
   2
   3 import java.io.IOException;
   4 import java.io.PrintWriter;
   5 import java.io.UnsupportedEncodingException;
   6 import java.security.KeyStore;
   7 import java.security.cert.X509Certificate;
   8 import java.util.Calendar;
   9 import java.util.Collections;
  10 import java.util.HashMap;
  11 import java.util.LinkedList;
  12 import java.util.Locale;
  13 import java.util.Map;
  14 import java.util.Properties;
  15 import java.util.regex.Pattern;
  16
  17 import javax.servlet.ServletException;
  18 import javax.servlet.http.HttpServlet;
  19 import javax.servlet.http.HttpServletRequest;
  20 import javax.servlet.http.HttpServletResponse;
  21 import javax.servlet.http.HttpSession;
  22
  23 import org.cacert.gigi.database.DatabaseConnection;
  24 import org.cacert.gigi.dbObjects.DomainPingConfiguration;
  25 import org.cacert.gigi.dbObjects.User;
  26 import org.cacert.gigi.localisation.Language;
  27 import org.cacert.gigi.output.Menu;
  28 import org.cacert.gigi.output.PageMenuItem;
  29 import org.cacert.gigi.output.SimpleMenuItem;
  30 import org.cacert.gigi.output.template.Form.CSRFException;
  31 import org.cacert.gigi.output.template.Outputable;
  32 import org.cacert.gigi.output.template.Template;
  33 import org.cacert.gigi.pages.HandlesMixedRequest;
  34 import org.cacert.gigi.pages.LoginPage;
  35 import org.cacert.gigi.pages.LogoutPage;
  36 import org.cacert.gigi.pages.MainPage;
  37 import org.cacert.gigi.pages.Page;
  38 import org.cacert.gigi.pages.PolicyIndex;
  39 import org.cacert.gigi.pages.RootCertPage;
  40 import org.cacert.gigi.pages.StaticPage;
  41 import org.cacert.gigi.pages.TestSecure;
  42 import org.cacert.gigi.pages.Verify;
  43 import org.cacert.gigi.pages.account.ChangePasswordPage;
  44 import org.cacert.gigi.pages.account.MyDetails;
  45 import org.cacert.gigi.pages.account.certs.CertificateAdd;
  46 import org.cacert.gigi.pages.account.certs.Certificates;
  47 import org.cacert.gigi.pages.account.domain.DomainOverview;
  48 import org.cacert.gigi.pages.account.mail.MailOverview;
  49 import org.cacert.gigi.pages.admin.TTPAdminPage;
  50 import org.cacert.gigi.pages.admin.support.FindDomainPage;
  51 import org.cacert.gigi.pages.admin.support.FindUserPage;
  52 import org.cacert.gigi.pages.admin.support.SupportUserDetailsPage;
  53 import org.cacert.gigi.pages.error.AccessDenied;
  54 import org.cacert.gigi.pages.error.PageNotFound;
  55 import org.cacert.gigi.pages.main.RegisterPage;
  56 import org.cacert.gigi.pages.orga.CreateOrgPage;
  57 import org.cacert.gigi.pages.orga.ViewOrgPage;
  58 import org.cacert.gigi.pages.wot.AssurePage;
  59 import org.cacert.gigi.pages.wot.MyPoints;
  60 import org.cacert.gigi.pages.wot.RequestTTPPage;
  61 import org.cacert.gigi.ping.PingerDaemon;
  62 import org.cacert.gigi.util.ServerConstants;
  63
  64 public class Gigi extends HttpServlet {
  65
  66     private class MenuBuilder {
  67
  68         private LinkedList<Menu> categories = new LinkedList<Menu>();
  69
  70         private HashMap<String, Page> pages = new HashMap<String, Page>();
  71
  72         private Menu rootMenu;
  73
  74         public MenuBuilder() {}
  75
  76         private void putPage(String path, Page p, String category) {
  77             pages.put(path, p);
  78             if (category == null) {
  79                 return;
  80             }
  81             Menu m = getMenu(category);
  82             m.addItem(new PageMenuItem(p, path.replaceFirst("/?\\*$", "")));
  83
  84         }
  85
  86         private Menu getMenu(String category) {
  87             Menu m = null;
  88             for (Menu menu : categories) {
  89                 if (menu.getMenuName().equals(category)) {
  90                     m = menu;
  91                     break;
  92                 }
  93             }
  94             if (m == null) {
  95                 m = new Menu(category);
  96                 categories.add(m);
  97             }
  98             return m;
  99         }
 100
 101         public Menu generateMenu() throws ServletException {
 102             putPage("/denied", new AccessDenied(), null);
 103             putPage("/error", new PageNotFound(), null);
 104             putPage("/login", new LoginPage("Password Login"), "CAcert.org");
 105             getMenu("CAcert.org").addItem(new SimpleMenuItem("https://" + ServerConstants.getSecureHostNamePort() + "/login", "Certificate Login") {
 106
 107                 @Override
 108                 public boolean isPermitted(User u) {
 109                     return u == null;
 110                 }
 111             });
 112             putPage("/", new MainPage("CAcert - Home"), null);
 113             putPage("/roots", new RootCertPage(truststore), "CAcert.org");
 114             putPage(ChangePasswordPage.PATH, new ChangePasswordPage(), "My Account");
 115             putPage(LogoutPage.PATH, new LogoutPage("Logout"), "My Account");
 116             putPage("/secure", new TestSecure(), null);
 117             putPage(Verify.PATH, new Verify(), null);
 118             putPage(AssurePage.PATH + "/*", new AssurePage(), "Web of Trust");
 119             putPage(Certificates.PATH + "/*", new Certificates(), "Certificates");
 120             putPage(MyDetails.PATH, new MyDetails(), "My Account");
 121             putPage(RegisterPage.PATH, new RegisterPage(), "CAcert.org");
 122             putPage(CertificateAdd.PATH, new CertificateAdd(), "Certificates");
 123             putPage(MailOverview.DEFAULT_PATH, new MailOverview("My email addresses"), "Certificates");
 124             putPage(DomainOverview.PATH + "*", new DomainOverview("Domains"), "Certificates");
 125             putPage(MyPoints.PATH, new MyPoints("My Points"), "Web of Trust");
 126             putPage(RequestTTPPage.PATH, new RequestTTPPage(), "Web of Trust");
 127             putPage(TTPAdminPage.PATH + "/*", new TTPAdminPage(), "Admin");
 128             putPage(CreateOrgPage.DEFAULT_PATH, new CreateOrgPage(), "Organisation Admin");
 129             putPage(ViewOrgPage.DEFAULT_PATH + "/*", new ViewOrgPage(), "Organisation Admin");
 130             putPage(FindDomainPage.PATH, new FindDomainPage("Find Domain"), "System Admin");
 131             putPage(FindUserPage.PATH, new FindUserPage("Find User"), "System Admin");
 132             putPage(SupportUserDetailsPage.PATH + "*", new SupportUserDetailsPage("Support: User Details"), null);
 133             if (testing) {
 134                 try {
 135                     Class<?> manager = Class.forName("org.cacert.gigi.pages.Manager");
 136                     Page p = (Page) manager.getMethod("getInstance").invoke(null);
 137                     String pa = (String) manager.getField("PATH").get(null);
 138                     putPage(pa + "/*", p, "Gigi test server");
 139                 } catch (ReflectiveOperationException e) {
 140                     e.printStackTrace();
 141                 }
 142             }
 143
 144             try {
 145                 putPage("/wot/rules", new StaticPage("Web of Trust Rules", AssurePage.class.getResourceAsStream("Rules.templ")), "Web of Trust");
 146             } catch (UnsupportedEncodingException e) {
 147                 throw new ServletException(e);
 148             }
 149             baseTemplate = new Template(Gigi.class.getResource("Gigi.templ"));
 150             rootMenu = new Menu("Main");
 151             Menu about = new Menu("About CAcert.org");
 152             categories.add(about);
 153
 154             about.addItem(new SimpleMenuItem("//blog.cacert.org/", "CAcert News"));
 155             about.addItem(new SimpleMenuItem("//wiki.cacert.org/", "Wiki Documentation"));
 156             putPage(PolicyIndex.DEFAULT_PATH, new PolicyIndex(), "About CAcert.org");
 157             about.addItem(new SimpleMenuItem("//wiki.cacert.org/FAQ/Privileges", "Point System"));
 158             about.addItem(new SimpleMenuItem("//bugs.cacert.org/", "Bug Database"));
 159             about.addItem(new SimpleMenuItem("//wiki.cacert.org/Board", "CAcert Board"));
 160             about.addItem(new SimpleMenuItem("//lists.cacert.org/wws", "Mailing Lists"));
 161             about.addItem(new SimpleMenuItem("//blog.CAcert.org/feed", "RSS News Feed"));
 162
 163             Menu languages = new Menu("Translations");
 164             for (Locale l : Language.getSupportedLocales()) {
 165                 languages.addItem(new SimpleMenuItem("?lang=" + l.toString(), l.getDisplayName(l)));
 166             }
 167             categories.add(languages);
 168             for (Menu menu : categories) {
 169                 menu.prepare();
 170                 rootMenu.addItem(menu);
 171             }
 172
 173             rootMenu.prepare();
 174             return rootMenu;
 175         }
 176
 177         public Map<String, Page> getPages() {
 178             return Collections.unmodifiableMap(pages);
 179         }
 180     }
 181
 182     public static final String LOGGEDIN = "loggedin";
 183
 184     public static final String CERT_SERIAL = "org.cacert.gigi.serial";
 185
 186     public static final String CERT_ISSUER = "org.cacert.gigi.issuer";
 187
 188     public static final String USER = "user";
 189
 190     public static final String LOGIN_METHOD = "org.cacert.gigi.loginMethod";
 191
 192     private static final long serialVersionUID = -6386785421902852904L;
 193
 194     private static Gigi instance;
 195
 196     private Template baseTemplate;
 197
 198     private PingerDaemon pinger;
 199
 200     private KeyStore truststore;
 201
 202     private boolean testing;
 203
 204     private Menu rootMenu;
 205
 206     private Map<String, Page> pages;
 207
 208     private boolean firstInstanceInited = false;
 209
 210     public Gigi(Properties conf, KeyStore truststore) {
 211         synchronized (Gigi.class) {
 212             if (instance != null) {
 213                 throw new IllegalStateException("Multiple Gigi instances!");
 214             }
 215             testing = conf.getProperty("testing") != null;
 216             instance = this;
 217             DatabaseConnection.init(conf);
 218             this.truststore = truststore;
 219             pinger = new PingerDaemon(truststore);
 220             pinger.start();
 221         }
 222     }
 223
 224     @Override
 225     public synchronized void init() throws ServletException {
 226         if (firstInstanceInited) {
 227             super.init();
 228             return;
 229         }
 230         MenuBuilder mb = new MenuBuilder();
 231         rootMenu = mb.generateMenu();
 232         pages = mb.getPages();
 233
 234         firstInstanceInited = true;
 235         super.init();
 236     }
 237
 238     private Page getPage(String pathInfo) {
 239         if (pathInfo.endsWith("/") && !pathInfo.equals("/")) {
 240             pathInfo = pathInfo.substring(0, pathInfo.length() - 1);
 241         }
 242         Page page = pages.get(pathInfo);
 243         if (page != null) {
 244             return page;
 245         }
 246         page = pages.get(pathInfo + "/*");
 247         if (page != null) {
 248             return page;
 249         }
 250         int idx = pathInfo.lastIndexOf('/');
 251
 252         page = pages.get(pathInfo.substring(0, idx) + "/*");
 253         if (page != null) {
 254             return page;
 255         }
 256
 257         int lIdx = pathInfo.lastIndexOf('/', idx);
 258         if (lIdx == -1) {
 259             return null;
 260         }
 261         page = pages.get(pathInfo.substring(0, lIdx) + "/" + pathInfo.substring(idx));
 262         return page;
 263
 264     }
 265
 266     private static String staticTemplateVarHttp = "http://" + ServerConstants.getStaticHostNamePort();
 267
 268     private static String staticTemplateVarHttps = "https://" + ServerConstants.getStaticHostNamePortSecure();
 269
 270     private static String getStaticTemplateVar(boolean https) {
 271         if (https) {
 272             return staticTemplateVarHttps;
 273         } else {
 274             return staticTemplateVarHttp;
 275         }
 276     }
 277
 278     @Override
 279     protected void service(final HttpServletRequest req, final HttpServletResponse resp) throws ServletException, IOException {
 280         boolean isSecure = req.getServerPort() == ServerConstants.getSecurePort();
 281         addXSSHeaders(resp, isSecure);
 282         // Firefox only sends this, if it's a cross domain access; safari sends
 283         // it always
 284         String originHeader = req.getHeader("Origin");
 285         if (originHeader != null //
 286                 &&
 287                 !(originHeader.matches("^" + Pattern.quote("https://" + ServerConstants.getWwwHostNamePortSecure()) + "(/.*|)") || //
 288                         originHeader.matches("^" + Pattern.quote("http://" + ServerConstants.getWwwHostNamePort()) + "(/.*|)") || //
 289                 originHeader.matches("^" + Pattern.quote("https://" + ServerConstants.getSecureHostNamePort()) + "(/.*|)"))) {
 290             resp.setContentType("text/html; charset=utf-8");
 291             resp.getWriter().println("<html><head><title>Alert</title></head><body>No cross domain access allowed.<br/><b>If you don't know why you're seeing this you may have been fished! Please change your password immediately!</b></body></html>");
 292             return;
 293         }
 294         HttpSession hs = req.getSession();
 295         String clientSerial = (String) hs.getAttribute(CERT_SERIAL);
 296         if (clientSerial != null) {
 297             X509Certificate[] cert = (X509Certificate[]) req.getAttribute("javax.servlet.request.X509Certificate");
 298             if (cert == null || cert[0] == null//
 299                     || !cert[0].getSerialNumber().toString(16).toUpperCase().equals(clientSerial) //
 300                     || !cert[0].getIssuerDN().equals(hs.getAttribute(CERT_ISSUER))) {
 301                 hs.invalidate();
 302                 resp.sendError(403, "Certificate mismatch.");
 303                 return;
 304             }
 305
 306         }
 307         if (req.getParameter("lang") != null) {
 308             Locale l = Language.getLocaleFromString(req.getParameter("lang"));
 309             Language lu = Language.getInstance(l);
 310             req.getSession().setAttribute(Language.SESSION_ATTRIB_NAME, lu.getLocale());
 311         }
 312         final Page p = getPage(req.getPathInfo());
 313
 314         if (p != null) {
 315             if ( !isSecure && (p.needsLogin() || p instanceof LoginPage || p instanceof RegisterPage)) {
 316                 resp.sendRedirect("https://" + ServerConstants.getWwwHostNamePortSecure() + req.getPathInfo());
 317                 return;
 318             }
 319             User currentPageUser = LoginPage.getUser(req);
 320             if ( !p.isPermitted(currentPageUser)) {
 321                 if (hs.getAttribute("loggedin") == null) {
 322                     String request = req.getPathInfo();
 323                     request = request.split("\\?")[0];
 324                     hs.setAttribute(LoginPage.LOGIN_RETURNPATH, request);
 325                     resp.sendRedirect("/login");
 326                     return;
 327                 }
 328                 resp.sendError(403);
 329                 return;
 330             }
 331             if (p.beforeTemplate(req, resp)) {
 332                 return;
 333             }
 334             HashMap<String, Object> vars = new HashMap<String, Object>();
 335             Outputable content = new Outputable() {
 336
 337                 @Override
 338                 public void output(PrintWriter out, Language l, Map<String, Object> vars) {
 339                     try {
 340                         if (req.getMethod().equals("POST")) {
 341                             if (req.getQueryString() != null && !(p instanceof HandlesMixedRequest)) {
 342                                 return;
 343                             }
 344                             p.doPost(req, resp);
 345                         } else {
 346                             p.doGet(req, resp);
 347                         }
 348                     } catch (CSRFException err) {
 349                         try {
 350                             resp.sendError(500, "CSRF invalid");
 351                         } catch (IOException e) {
 352                             e.printStackTrace();
 353                         }
 354                     } catch (IOException e) {
 355                         e.printStackTrace();
 356                     }
 357
 358                 }
 359             };
 360             Language lang = Page.getLanguage(req);
 361
 362             vars.put(Menu.USER_VALUE, currentPageUser);
 363             vars.put("menu", rootMenu);
 364             vars.put("title", lang.getTranslation(p.getTitle()));
 365             vars.put("static", getStaticTemplateVar(isSecure));
 366             vars.put("year", Calendar.getInstance().get(Calendar.YEAR));
 367             vars.put("content", content);
 368             if (currentPageUser != null) {
 369                 vars.put("loggedInAs", currentPageUser.getName().toString());
 370                 vars.put("loginMethod", lang.getTranslation((String) req.getSession().getAttribute(LOGIN_METHOD)));
 371             }
 372             resp.setContentType("text/html; charset=utf-8");
 373             baseTemplate.output(resp.getWriter(), lang, vars);
 374         } else {
 375             resp.sendError(404, "Page not found.");
 376         }
 377
 378     }
 379
 380     public static void addXSSHeaders(HttpServletResponse hsr, boolean doHttps) {
 381         hsr.addHeader("Access-Control-Allow-Origin", "https://" + ServerConstants.getWwwHostNamePortSecure() + " https://" + ServerConstants.getSecureHostNamePort());
 382         hsr.addHeader("Access-Control-Max-Age", "60");
 383         if (doHttps) {
 384             hsr.addHeader("Content-Security-Policy", httpsCSP);
 385         } else {
 386             hsr.addHeader("Content-Security-Policy", httpCSP);
 387         }
 388         hsr.addHeader("Strict-Transport-Security", "max-age=31536000");
 389
 390     }
 391
 392     private static String httpsCSP = genHttpsCSP();
 393
 394     private static String httpCSP = genHttpCSP();
 395
 396     private static String genHttpsCSP() {
 397         StringBuffer csp = new StringBuffer();
 398         csp.append("default-src 'none'");
 399         csp.append(";font-src https://" + ServerConstants.getStaticHostNamePortSecure());
 400         csp.append(";img-src https://" + ServerConstants.getStaticHostNamePortSecure());
 401         csp.append(";media-src 'none'; object-src 'none'");
 402         csp.append(";script-src https://" + ServerConstants.getStaticHostNamePortSecure());
 403         csp.append(";style-src https://" + ServerConstants.getStaticHostNamePortSecure());
 404         csp.append(";form-action https://" + ServerConstants.getSecureHostNamePort() + " https://" + ServerConstants.getWwwHostNamePortSecure());
 405         csp.append(";report-url https://api.cacert.org/security/csp/report");
 406         return csp.toString();
 407     }
 408
 409     private static String genHttpCSP() {
 410         StringBuffer csp = new StringBuffer();
 411         csp.append("default-src 'none'");
 412         csp.append(";font-src http://" + ServerConstants.getStaticHostNamePort());
 413         csp.append(";img-src http://" + ServerConstants.getStaticHostNamePort());
 414         csp.append(";media-src 'none'; object-src 'none'");
 415         csp.append(";script-src http://" + ServerConstants.getStaticHostNamePort());
 416         csp.append(";style-src http://" + ServerConstants.getStaticHostNamePort());
 417         csp.append(";form-action https://" + ServerConstants.getSecureHostNamePort() + " https://" + ServerConstants.getWwwHostNamePort());
 418         csp.append(";report-url http://api.cacert.org/security/csp/report");
 419         return csp.toString();
 420     }
 421
 422     /**
 423      * Requests Pinging of domains.
 424      *
 425      * @param toReping
 426      *            if not null, the {@link DomainPingConfiguration} to test, if
 427      *            null, just re-check if there is something to do.
 428      */
 429     public static void notifyPinger(DomainPingConfiguration toReping) {
 430         if (toReping != null) {
 431             instance.pinger.queue(toReping);
 432         }
 433         instance.pinger.interrupt();
 434     }
 435
 436 }